A058439 - OEIS

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A058439

Numbers n such that n^2 contains only digits {0,4,7}, not ending with zero.

2, 88, 638, 2010988315424552 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`P. De Geest, Index to related sequences` `Hisanori Mishima, Sporadic tridigital solutions`
	CROSSREFS	`Cf. A058440.` `Sequence in context: A177318 A172736 A066226 * A058463 A166848 A001904` `Adjacent sequences: A058436 A058437 A058438 * A058440 A058441 A058442`
	KEYWORD	`nonn,base,hard,more`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2000.`

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Last modified February 13 10:03 EST 2012. Contains 205451 sequences.